Probably Slayer in April 1999 at the Warehouse in Toronto. Smaller venue (3000 capacity) than Slayer plays these days. My friend Will went into the pit and came out five minutes later with blood dripping from his mouth, a ripped T-shirt and three broken ribs. I saw a lot of people get hurt that night. Probably due to the crowd being a lot of casul metal fans who didn't know a lot about "pit-ediquite", just going out with the intent to kill thinking that's what you're supposed to do.

The Black Dahlia Murder when I saw them last october in this small club with support from Cannabis Corpse. I have never seen people going as crazy as I did at that show. The pit was fucking brutal after the show blood was everywhere it was crazy. Plus all the crowd surfers and stage divers.

Probably one of the three times I saw Asesino. The venue was smaller and full of crazy drunk Mexicans. At one point one of them took off his studded belt and wrapped it aroud his fists ready to fight anyone who bumped into him in the pit.

I think the craziest show I've seen was Terror playing at a house right down the street from me. They were playing in the living room and it was packed wall to wall. There were lots of people in other rooms of the house who couldn't get in. It was so hot in there that the windows and mirror in the corner were fogged up. The room had a high ceiling with two large beams going through the center, so naturally people (myself included) jumped off of them. It was total chaos in there. Unfortunately there are no videos of it.

Meshuggah back in May was the most violent crowd Ive seen, Nevermore on Halloween 2010 was right up there as well.

I got knocked out during Haste The Dayw hen they opened for As I Lay Dying and All That Remains (a couple years before ATR made it big). But thats because I never heard of pit ninjas before nor did I know how to avoid them.

Not quite the same thing but I tell you the loudest crowd I've ever seen was Evanescence in London. Holy fucking shit teenage girls love screaming at people on stage for no apparent reason... (this was going to be worded differently, but this was the only version I could come up with that wouldn't lead immediately to a paedophile joke... which is fine, because if someone else had said it, I'd have made one )